Device for measuring depth of wells



A ril 29 1924.

C. M. COPELAND DEVICE FOR MEASURING DEPTH OF WELLS Filed July 27, 1922Patented Apr. 22, 1924s rut man

PAT

CLINT M. COPELAND, GRAHAM, TEXAS.

DEVICE MEASURING DEPTH 033 WELLS.

Application filed July 27, 1922. Serial No..57 7,958

To all 107mm it may concern:

Be it known that I, CLINT M. COPELAND, a citizen ofthe United States,residing at Graham, in the county of Young and State of Texas, haveinvented certain'new and useful Improvements in Devices for MeasuringDepth of Wells, specification.

This invention relates to means for measuring the depth of wells in welldrilling,

especially oil wells, and it pertains more par- 7 ticularly to the novelarrangement of the parts thereof. I

The object of the invention, specifically, is to provide a device ofthis nature for measuring the length of the well cable upon which thetools are suspended, as it is drawn from the well to ascertain the depthof the drilled hole, and also to ascertain the position of the toolswhen desirable. The device is also capable of operation in either theupward or downward movement of the well cable.

The present invention is adapted to be used in connection with a meterarrangement for registering the depth of the well, the latter deviceforming the subject matter of a co-pending application filed May 31,1921. Serial No. 473,709.

The invention will be clearly understood by reference to the followingdescription, taken in connection with the accompanying drawings, formingpart hereof in which- Figure 1 is a side elevational view of the devicein its frame at the top of a well derrick, showing its connection to thewell cable, with parts broken away.

Figure 2 is a top or plan view, partly in horizontal section; and

Figure 3 is a detail sectional view of one end of the roller shaft andits spring con nection.

Referring more closely and in detail to the drawings, 1 denotes the topof a derrick frame to which the device is suspended. Underneath eachside of the derrick top parts 11 is a bar 2 which forms a longitudinalrecess 3. The device has a frame composed of two parallel bars 44 and anintegral connecting piece 5, also four integrally formed lateral arms66. The arms 6 6 are bent at right angles to the frame and then directedupwardly at 77 and then of which the following is a outwardly at 88 andpassed through the recess 3 and form a means for suspending, the frameand for sliding it to and fro for adjustments.

Upon the bars 14 of the frame are bearings 9-9 which support a shaftcarrying a pulley wheel 10, the pulley wheel being affixed to the shaft11 by-screws 12-12 and provided with a groove 13 to receive a cable 14.i

Underneath each end of the shaft 11 is a trough 15 containinglubricating oil and bymeans of the chains 16 on each end of the shaft 11it is kept lubricated.

Adjacent one side of the pulley 10 is a roller 17 with a groove 18, theroller having a shaft 19 which rotates in bearings 20-20. A chain 21 oneach endof the shaft 19 is suspended in the trough 15and also provideslubrication for the shaft 19 of the roller.

The shaft 19 and pulley 17 are held against the cable 1d so that thecable will at all times be in engagement with the pulley and roller. Forthis purpose there are provided springs 22-22, one end of each beingfastened to connecting piece 5 of the frame and then connected to anextended. portion 23 of the bearing 20. Two angular arms 24.-24 arebolted to the bars 44 of the frame and are provided with a longitudinalslideway 25 for the reception of upwardly extended guide-bars 26-26,also formed in tegrally with the bearing 20. The guidebars have a slightengaging flange as shown in the drawings at 27 for the purpose of moreeffectually enabling the bars to ride in a true line.

Referring to Figure 1, the wheel or pulley 10 is provided with a pin 27which, as the wheel rotates, engages a resilient contact bar 28. Thisbar forms a means for making and breaking connection in an electriccircuit to register with each revolution of the wheel a number on ameter (referred to above) connected through a battery by wires 29-29.

As the cable descends into the well, the rotation of wheel 10 throughpin 27 will connect and disconnect the electric circuit and register anumber onthe meter. The roller 17 will keep the cable in contact withthe pulley to ensure constant rotation of the wheel when the cable isascending or de- 105 scend-ing, while the guide-bars 26 26 in theslideways 2525, together with the springs 22-22 provide for anyirregularities in the cable or for different cable sizes.

What is claimed is 1. In ameasuring device, a cerriclr frame having atop, a pair of spaced parallel bars secured at their ends to and beneaththe top of the frame and having their intermediate frame, a pair ofangular arms secured to the bars of the second frame and havlngslideways, a shaft carrying a cable en ing' @a roller disposed oppositeto the wheel, bearings for said shaft having upwardly, projecting guidesengaged in said slideways, springs connected to the bearings and to, thesecond frame to hold said roller against the cable, aprojection on thewheel, and a resilient member on the second frame for engagement withsaid projection of the wheel to actuate a meter.

ZJIn a measuring device, a frame having a top, bars secured to andbeneath the top and having portions spaced from the top, a

second framehaving parts extending thereabove and engaged in the spacebetween the top and the first named bars to suspend the second framefrom the top of the derrick frame, a shaft jonrnaled on the second frameand having a cable engaging wheel, a pair of angular arms carried by thesecond frame and having slideways, a second shaft having a cableengaging roller, bearings for the second shaft disposed between thesecond frame and the slideways and having upwardly projecting guidesengaged in the slideways, springs connected to the bearings and tothesecondframe to hold the roller againstthe cable, a projection on thewheel,

and means engaging the projection to ac tuate a meter.

3. In combination ways parallel to the frame and disposed thereabove, acable engaging wheel carried by the frame, bearings mounted between theslideways and frame and having parts extending upwardly therefrom andengaged through the slideways, a shaft having a cable en aging rollerjournaled in the bearings, springs connected'to the bearings and to theframe, and meter actuating means operated by the wheel.

In testimony whereof I have signed my name to this specification.

CLINT M. COPELAND,

with a frame, slide-

